The veilwalker

Silas Walker is a mysterious new boy at school. Cold. Quiet. And obsessed with Emily Wynn - a girl who feels like she's being haunted by someone still alive.
Because Elias isn't exactly alive.
He's a Veilwalker - someone trapped between the world of the living and the dead. Not a ghost, not human, but something stuck in between. His job used to be guiding the souls of the dead... until he made a mistake.
He was supposed to take Emily's soul.
But he let her live. Her soul grew brighter, and he was drawn. Their souls accidentally tied.
Now, Silas is cursed to walk the Veil - half-existing, half-watching - bound to Nora in ways she doesn't understand.
Worse: the universe is trying to fix his mistake.
And it wants Emily dead. To fix this, he meets her and intends to kill her, but he falls in love. One of them must go. And by the end of the book, its him.